My iPhone 11 will not update to the most recent iOS

If your Apple mobile device won't update, read this support article --> If your iPhone or iPad won't update - Apple Support

Another, less common reason for not being able to update is if you were using a beta version of software. Refer to How to uninstall iOS or iPadOS beta software - Apple Support

Coolj12 wrote:

My iPhone 11 will not install update for latest iOS why?

If your iPhone or iPad won't update - Apple Support